Gas prices in Canada today and tomorrow

A pump price is the sum of four layers. The first is the refined gasoline itself, bought at a terminal at the wholesale or "rack" price, which follows the North American refinery market quoted in New York Harbor in the East and at Edmonton in the West. The second is the wholesaler's and retailer's margin, which pays for trucks, staff, rent and profit. The third is the per-litre taxes: the provincial fuel tax, sometimes a regional transit tax, and the federal excise tax when it applies. The last is the sales tax, GST, HST or GST plus QST, charged on everything before it, taxes included.

Only the first layer moves every day. Margins move with competition and taxes move on dates set by law. That is why a rack price that falls by 5¢/L usually shows up at the pump as a drop of a little more than five cents once sales tax is added, and why a tax change can be priced in to the cent on the day it takes effect.

Statistics Canada's table 18-10-0001-01 gives the monthly average pump price of regular, premium and diesel in 18 cities, under the Open Government Licence. The Government of Ontario publishes a weekly survey of 14 markets and daily wholesale prices for Toronto, Thunder Bay and Edmonton, also under an open licence. The Régie de l'énergie du Québec publishes a daily survey by region every weekday morning. The Atlantic regulators publish the maximum prices they set, usually every Friday, and currently every day in Newfoundland and Labrador.

Natural Resources Canada also publishes weekly averages for many cities, but its terms forbid commercial reuse without written permission, so this site links to it without reproducing its figures. It does not use prices reported by app users or scraped from other sites.

In Nova Scotia, New Brunswick, Prince Edward Island and Newfoundland and Labrador, an independent board sets the pump price from a benchmark wholesale price and allowed margins: a maximum by zone in Nova Scotia and Newfoundland and Labrador, one maximum for all of New Brunswick, and a minimum and a maximum in Prince Edward Island. Stations may not sell above the maximum, so the published figure is a ceiling. Halifax's ceiling for regular is 185.3¢/L since October 23, 2026; St. John's, where the board is resetting prices every day for now, is at 202.5¢/L. Because the next change date is known, the estimate for tomorrow stays at the ceiling in force unless tomorrow is a reset day.

Quebec does not cap prices. The Régie de l'énergie publishes a survey of posted prices by region every weekday morning, which this site uses as its Quebec source.

Ottawa suspended the 10-cent federal excise tax on gasoline and the 4-cent tax on diesel on April 20, 2026. Draft legislation published by Finance Canada in September 2026 (proposed, not enacted) keeps the rate at zero until January 31, 2027, applies half the rate in February and March 2027, and restores it in full on April 1, 2027. With HST at 13%, the full return adds 11.30¢/L to a litre of gasoline in Ontario. The tax change is already dated in the site's estimate, so the day it happens the figure for tomorrow includes it.

A cent a litre sounds small. On a 55-litre fill-up it is 55 cents; over a year of 15,000 km in a car using 8.7 L/100 km it is about $13.05. The 61.1-cent gap between Edmonton and Victoria is therefore worth $33.61 on that fill-up and about $797 over a year.